I have a fairly large room (23 by 40ft, ceiling height between 12ft to 30ft) and the N802 deep bass is still fairly good. It's the extra oomph and warmth and lifelike-ness you want, then a PAIR (2) of subs will be needed. It is also the classic placement problem which requires the speakers to be way out away from the front and side walls for best imaging but cause thinning of bass. I put away but had to drag out again a pair of subs (X-over and biamped at 80Hz x 200WPC) to fill that oh so desirable oomphs. I am very happy with the result! But beware: Bad bass is worse than no bass but no bass is not true high fidelity.
